---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-64-77c9a373d046> in <module>()
19 # yc = YieldC()
20 # pipe.add(Yield, 'YieldC')
---> 21 pipe.add(YieldC, 'Yield')
22
23 def before_trading_start(context, data):
/build/src/qexec_repo/zipline_repo/zipline/pipeline/pipeline.py in add(self, term, name, overwrite)
74 @expect_types(term=Term, name=str)
75 def add(self, term, name, overwrite=False):
---> 76 """
77 Add a column.
78
/build/src/qexec_repo/zipline_repo/zipline/utils/input_validation.pyc in _check(func, argname, argvalue)
422 'funcname': _qualified_name(func),
423 'argname': argname,
--> 424 'actual': actual(argvalue),
425 },
426 )
TypeError: zipline.pipeline.pipeline.add() expected a value of type zipline.pipeline.term.Term for argument 'term', but got abc.ABCMeta instead.